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WOT woes

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Old Mar 6, 2007 | 04:25 AM
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From: Iranndia
Default WOT woes

Well, I finally got all the little kinks and gremlins out of my turbo setup, and decided to have a little fun only to discover another disappointing problem. The engine has no problem getting in the revs at part throttle up to 90% or so, but when it goes WOT, it doesn't rev past 4000 rpm (Just holds there) and makes no power. going from part throttle free revs to WOT is almost like hitting a rev limiter. Regardless this is ONLY at WOT and there are no codes at all associated with it. Is this just pesky torque management getting in the way or something else? Any input would be nice. Stock bottom end, TTi kit, T-62 ball bearing turbo, upgraded (52 lb) injectors, running 7 psi max boost. There is no knocking or lack of smoothness associated with acceleration either. No pinging, straight noises, and as I said it shoots right up to redline at part thottle (and insanely strong) no problem. Just WOT issue... thanks!
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Old Mar 6, 2007 | 07:59 AM
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Originally Posted by Quick1998Z28
Well, I finally got all the little kinks and gremlins out of my turbo setup, and decided to have a little fun only to discover another disappointing problem. The engine has no problem getting in the revs at part throttle up to 90% or so, but when it goes WOT, it doesn't rev past 4000 rpm (Just holds there) and makes no power. going from part throttle free revs to WOT is almost like hitting a rev limiter. Regardless this is ONLY at WOT and there are no codes at all associated with it. Is this just pesky torque management getting in the way or something else? Any input would be nice. Stock bottom end, TTi kit, T-62 ball bearing turbo, upgraded (52 lb) injectors, running 7 psi max boost. There is no knocking or lack of smoothness associated with acceleration either. No pinging, straight noises, and as I said it shoots right up to redline at part thottle (and insanely strong) no problem. Just WOT issue... thanks!
Auto tranny? If so, could be in the tuning.
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Old Mar 6, 2007 | 10:26 AM
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Originally Posted by RealQuick
Auto tranny? If so, could be in the tuning.
yeah it's a stalled auto
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Old Mar 6, 2007 | 10:31 AM
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Its the tune... Most likey it is the rev limiter in gear.
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Old Mar 6, 2007 | 11:31 AM
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Originally Posted by Ryan K
Its the tune... Most likey it is the rev limiter in gear.
the curious thing that boggles me is why does it oly do it at WOT?
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Old Mar 6, 2007 | 12:29 PM
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Originally Posted by Quick1998Z28
the curious thing that boggles me is why does it oly do it at WOT?
WOT actually uses different setpoints for things like shifting and revlimiters.

Ryan K.
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Old Mar 6, 2007 | 12:48 PM
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From: Iranndia
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Originally Posted by Ryan K
WOT actually uses different setpoints for things like shifting and revlimiters.

Ryan K.
ahhh cool, good to know, and makes sense. Looks like I need to go get some WOT tuning taken care of now
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